Harrow



{No Model.) 2 Sheets-Sheet 1.

A 0. JONES. HARROW.

' No.527,993. Patented 001. 23,1894.

Ill 11 1 5 H H i I a Q 0 I l wi bvwoow v (No Model.) 2 Sheets-Sheet 2.

w. A. 0. JONES. HARROW.

No. 527,993. Patented Oct 23, 1894..

NITED STATES PATENT OFFICE.

.WYATT A. o. JONES, OF ROGERS, ARKANSAS.

HARRow.

SPECIFICATION forming part of Letters Patent No. 527,993, dated October23, 1894. Application filed December 19,1893. Serial No. 494,099. (Nomodel.)

To a, tvhom it may concern.-

Be it known that I, WYATT A. O. JONES, a

citizen of the United States, residing at Rogers, in the county ofBenton and State of Arkansas, have invented certain new and usefulImprovements in Harrows; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to thefigures of reference marked thereon, which form a part of thisspecification.

My invention relates to certain new and of the machine being used,whilea roller capable of a vertical movement is mounted in the rear ofthe machine and is adapted to even the ground, the frame of the machinebeing carried by the supporting wheel and by universally pivoted rearwheels.

My invention, therefore, consists in the construction, arrangement andcombination of the several parts of which the said machine is composed,as will be hereinafter more fully described and claimed.

Referring to the accompanying drawings in which corresponding parts aredesignated by similar marks of reference: Figure l is a plan view of acombined clodcutter and barrow constructed in accordance to thisinvention. Fig. 2 IS a front View thereof. Fig. 3 is a side elevation ofthe invention. Fig. 4 is a central vertical longitudinal section onlines X X of Fig. 1. Fig. 5 is a detail View showing the method ofmounting the rear roller.

piece to support the opening roller, and to afford a point of attachmentfor the pivoted supporting wheel, to be hereinafter more fullydescribed.

A shaft4 projects from side to side of the frame, passing through theside pieces thereof in front of the sill piece 3, and by preference, infront of the center of the frame, the said shaft having rigidly securedupon its opposite ends the supporting wheels 5, the peripheries of whichare by preference corrugated to prevent. the slipping thereof. Bars 6have their rear ends pivoted upon the shaft 5, their forward ends beingconnected bythe bent portion 7 thereof, which liesimmediately in therear of the forward transverse sill piece 2. A

cylinder 7, having projecting teeth 8 upon its periphery is pivoted tothe said bars between their forward ends and their pivotal point, thesaid cylinder having rigidly secured at each end thereof sprocket wheels8*, while similar sprocketwheels 9 are rigidly secured to the shaft4inside the side pieces 1, a sprocket chain 10 passing over each of thesprocket wheels 8 and the corresponding sprocket wheel 9.

As shown in the accompanying drawings,

I construct the sprocket wheel 8 of less size than the sprocket wheel 9,whereby, upon a rotation of the supporting wheels5, on a movement of theframe, the cylinder 7 will be driven with an accelerated motion in thesame direction as the supporting wheel, thereby throwing the clods tothe rear, breaking them at the same time, audit will be noticed that asthe bars in which the cylinder is carried lever 14., the forward end ofwhich is connected by a flexible coupling, such as the chain 15 with thebent portion 7 a of the bar 6, whereby the latter and the cylindercarried thereby may be raised, the rear end of the lever being providedwith a handle and having a wing 16 adapted to be engaged in the serratedstandard 17, which is secured to and arises from the transverse sillpiece 3, the flexible connection between the lever and bars 6 permittingthe latter to rise when the cylinder 7 strikes an obstruction.

The seat 18 is secured on the rear end of the side pieces 1, and aplatform is mounted upon the transverse sill piece 3 in front thereof,the seat being in convenient reach of the rear end of the lever.

Brackets 20 are secured to the outside of the rear end of each of theside pieces 1, each having formed therein a vertical bore closed at itsupper end, each bore 21 being adapted to receive an upright 22, thelower end of which isbifurcated, a wheel 23 being mounted between theforks 24 thereon, it being evident that by this construction the uprightmay be rotated and turned, whereby in turning the frame, the wheels 23will be free to assume any position therefor.

A link 25 is pivoted upon the inner side of each side piece 1 byremovable bolts 25, the said links projecting to the rear and beingapertured to admit the passage of the axle 26 of the evening roller 27,the links being connected in front of the said roller by a transverseplate 28, which serves as a scraper to prevent the accumulation of soilupon the roller. In order to obviate the necessity of making the bolts25 of great size and strength, and to reduce to a minimum the strainupon the links 25, thestandards 29 of the seat 18 are continued to therear of the side pieces 1, and have vertical slots 30 therein, the upperends of which open to the rear of the standard, and in these slots theends of the axle 26 of the roller 27 are contained.

Vertical pockets 31 are secured upon the outer surface of each of thestandards 29 above and below the rearwardly extended portion of the slot30 therein,through which pockets a locking plate 33 provided with a bentupper end, 34:, is adapted to be inserted, whereby the axle of theroller will be locked within the slot and it will thus be seen that,while the said axle is free to move vertically within the slot, in orderto provide for the inequalities of the ground upon which the rollerconstantly bears, the axle will be securely held in place.

Flanges 35 are secured to the lower surface of the forward ends of eachof the side pieces, immediately on the side and in front of the cylinder7, whereby the lateral displacement of the clods will be prevented, thesaid flanges having knife-shaped lower edges to cut and sever any clodsthat may be thrown by the cylinder 7 or over which they may pass.

Any desired form of motive power for drawing the frame over the groundmay be attached to the forward transverse sill piece 2, as is evident.

From the above it will be seen that the cylinder 7 may be so adjusted asto cause the teeth thereon to penetrate the soil to any desired extent,and that the roller will on account of its freedom to vertical motionbear constantly on the ground.

In order to permit the movement of the harrow from place to placewithout driving the roller 8, when such is desired, and to permit thebacking of the harrow without reversing the direction of rotation of theroller, I may, if I desire,insert clutches, such as between the mainaxle 4 and the sprocket wheels 9,the several members of the clutcheshaving teeth so disposed thereon, as to engage upon the forward motionof the axle 4:, but to slide upon a reversal of its movement, wherebythe latter of the above objects is accomplished. The movable members 41of the clutches are feathered on the axle 4, and are pressed outwardlyagainst the outward members by the spiral spring 42 encircling the axle,while they are adapted to be disengaged therefrom by the system oflevers 48, whereby the sprocket wheels may be disconnected from the axleto permit the free movement thereof in any direction.

Having thus described my invention, what I claim, and desire to secure,is-- 1. In a harrow, the combination with a suitable frame, ofsupporting wheels therefor, bars pivoted concentrically to the saidwheels, a tooth cylinder mounted within the said bars and driven by thesaid supporting wheels with an accelerated motion, means for verticallyadjusting the position of the said cylinder, standards secured on theopposite sides of the rear of the said frame, each of the said standardshaving a vertical and rearwardly opening slot therein, and havingpockets thereon above and below the rearwardly opening portion of thesaid slots, locking plates adapted to be inserted in the said pockets,links pivoted to the said frame and having apertures therein, and anaxle, carrying a roller, the said axle passing through the apertures inthe links and through the slots in the standards, substantially asdescribed.

2. In a harrow, the combination with a suitable frame, of supportingwheels therefor, bars pivoted in the said frame,a tooth cylinder mountedin the said bar and driven by the said supporting wheels, a pivotedlever connected with the said bars, standards secured on the oppositesides of the rear of the said frame, each of the said standards havingavertical and rearwardly opening slot therein and having pockets thereonabove and below the rearwardly opening portion of the said slot, a seatcarried by the said standards, locking plates adapted to be inserted inthe said standards, links pivoted to the said frame and having aperturestherein and an axle, carrying a roller, the said axle passing. throu ghthe apertures in the links and through the slots in the standards,substantially as described.

3. In a harrow and clod cutter, the combination with a suitable frame,of a shaft passing therethrough, supportingwheels mounted on the saidshaft, bars pivoted upon the said shaft, a cylinder provided with teethjournaled in the said bars and having sprocket wheels thereon, sprocketwheels mounted on the said shaft of greater size than the sprocket onthe said cylinder, sprocket chains passing over the said sprocketwheels, a pivoted lever connected with the said bars, flanges providedwith knife edges secured to the said frame on the sides of the saidcylinder standards secured on the opposite sides of the said frame, eachof the said standards having a vertical and rearwardly opening slottherein and hav: ing vertical pockets thereon above and below therearwardly opening portion of the said lVYATT A. O. JONES.

Witnesses:

JAMES ROE, J. F. WALKER.

